Can anyone help? its about my hair. Please?

My hair is falling out so bad, ive dyed it in the past. I dont straighten or use styling utensils (curling irons, straightning irons, ect.,) very often. The only time I use them is when my fiance and I are going out somewere. And thats not very often. I always keep my hair pulled up in a ponytail or a bun. and i wash my hair about 3 times a week. Bc i know shampoo dries it out. And im trying to grow my hair to about my shoulder blades. its At my shoulders now. It loose curly hair. All natural. But if u can help me, ill be greatfull!!! Please help.